import 'package:flutter/material.dart';

class MyDialog extends Dialog{
  MyDialog({Key key}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return Material(
      type: MaterialType.transparency,
      child: Center(
          child: Container(
            height: 500,
            child: Column(
          // mainAxisAlignment: MainAxisAlignment.spaceAround,
          children: <Widget>[
            Image.network('https://ihome-zpzy.oss-cn-hangzhou.aliyuncs.com/mall/images/20191108/1573205883699zbmCQ2dE8HwyF3m3yzFrP778srzpWaDk.jpeg',
              width: 200,
              height: 400,
              fit: BoxFit.cover,
            ),
            SizedBox(height: 50,),
            Icon(Icons.close),
          ],
        ),
          )
        )
    );

  }
}